Pes tsawg kilowatt teev (kWh)

Cov txheej txheem:

Pes tsawg kilowatt teev (kWh)
Pes tsawg kilowatt teev (kWh)
Anonim

Lub neej ntawm noob neej niaj hnub no ua tsis tau yam tsis muaj kev tsim khoom thiab siv lub zog. Txawm li cas los xij, qhov no yeej ib txwm muaj. Thawj hom hluav taws xob mastered los ntawm tib neeg yog cua sov. Lub tsev - txawm lub qhov tsua, txawm lub tsev - yuav tsum tau rhuab, ua noj yuav tsum tau hluav taws, thiab rau lub hom phiaj no combustible zaub cov khoom, nyob rau hauv lwm yam lus, hluav taws, tau siv. Raws li lawv qhov ntim, nws yog kwv yees li qhov ua tau los txiav txim qhov muaj peev xwm ntawm cov cua sov tso tawm thaum combustion.

Tab sis lub sijhawm dhau mus, thiab tam sim no tib neeg tsim lub zog hauv txoj kev lag luam. Nws tau los ua ib yam khoom, lawv pib muag thiab yuav nws. Thiab qhov twg muaj kev lag luam ntau lawm, kev tswj yog qhov tseem ceeb.

kWh
kWh

Lub sijhawm hluav taws xob xav tau chav tsev tshiab ntawm cov khoom lag luam no, tsim thiab muag rau cov neeg siv khoom. Nws ua kilowatt-teev (kWh).

Ntau dua kilowatt-teev yooj yim dua joules

Qhov tseeb, lub zog - ob qho tib si tsim thiab siv - ntsuas hauv joules. Chav tsev no tau txais nyob rau hauv kev ntsuas thoob ntiaj teb kev ntsuas SI thiab yog qhov tseem ceeb. Ib joule sib raug rau lub zog uas tau siv los ntawm qhov chaw nrog lub zog ntawm ib watt rau ib pliag. Chav tsev yog qhov yooj yim thiab pom, tab sis nws muaj qhov tsis zoo: nyob rau hauv cov nqe lus ntawm kev noj ntawm ib chav tsev, nwsme me heev rau kev suav. Nws yuav nyuaj rau them rau lub zog siv thaum them nqi txawm tias hauv kilojoules (kJ) vim muaj cov cim loj. Yog li ntawd, ib qho kev txiav txim siab dav dav tau ua kom loj dua chav tsev mus rau ib kilowatt-teev (kWh). Qhov no yog keeb kwm keeb kwm ntawm qhov chaw tawm ntawm qhov system.

Kev hloov pauv ntawm kilowatt-teev mus rau joules thiab rov ua dua

1 kWh
1 kWh

Kev sib sau ntawm joules thiab kilowatt-teev yooj yim los xam. Muaj 3600 vib nas this hauv 1 teev, 1000 watts hauv ib kilowatt, yog li nws hloov tawm tias 1 kWh yog tib yam li 3.6 lab joules (los yog 3.6 megajoules).

Tom qab kev hloov pauv mus rau kilowatt-teev, nws tau dhau los ua yooj yim dua rau cov neeg siv khoom, kev xav, kom pom lub ntsiab lus ntawm qhov nws them rau. Txij li thaum thawj zaug hluav taws xob tau siv tsuas yog rau cov teeb pom kev hauv tsev thiab chaw ua haujlwm (tseem muaj lub tswv yim ntawm "them lub teeb"), nws yuav tsum tau nkag siab yooj yim tias lub teeb hluav taws xob puas watt yuav "cua" raws nraim 1 kWh hauv kaum teev..

Yog tias nws lub zog yog 40 watts, ces tus nqi ntawm cov nqi tib yam tuaj yeem "hlawv" ob thiab ib nrab sijhawm ntev dua. Muaj tseeb, thiab yuav muaj qhov kaj tsawg.

Cov cua sov hluav taws xob siv rau qhov chaw cua sov siv ntau lub zog ntau dua qhov muag teeb, yog li ntawd, lawv siv ntau npaum li ib teev raws li lwm yam khoom siv teeb pom kev zoo hauv ib hnub, tshwj xeeb tshaj yog txij li cov thev naus laus zis txuag hluav taws xob niaj hnub tau nce zuj zus, LED thiab neon teeb tau tshwm sim., ruaj thiab economical. Cov teeb taws teeb siv feem ntau ntawm lub zog uas lawv siv los ua cua sov.

Lub zog thiab lub zog hauv GHS system

Muaj lwm chav uas siv los ntsuas lub zog tsim tawm - calories, nws yog siv hauv GHS system. Feem ntau ntawm peb cov pej xeem (tshwj xeeb yog cov poj niam) paub cov calories los ntawm cov lus piav qhia uas piav qhia txog cov khoom noj muaj txiaj ntsig ntawm cov khoom noj. Qhov tseeb, qhov no yog lub zog uas yuav tsum tau ua kom sov ib gram ntawm dej los ntawm ib tug degree Celsius ntawm qhov pib kub ntawm 19.5 ° C. Nws yuav yooj yim yog tias nws tsis yog rau tus nqi me me (nws tsuas yog kwv yees li 4.19 npaug ntawm joule). Tab sis nws tsis yog li ntawd xwb. Hloov nws mus rau ib txwm watt-teev yog qhov tsis yooj yim, thiab txhua tus neeg twb tau siv rau chav tsev fais fab. Txawm li cas los xij, qee zaum kilocalories thiab megacalories tseem siv los txiav txim siab siv cua sov. Hloov Gcal / h rau kW tsis yooj yim, nws txaus kom paub tias 1163 kilowatts sib haum rau ib gigacalorie. Nws yuav tsum nco ntsoov tias lwm txoj cai siv ntawm no. Lub calorie yog ib chav tsev ntawm lub zog, thaum watts yog ib chav tsev ntawm lub zog. Yog li ntawd, los ntawm cov lus qhia coefficient, ib tus tuaj yeem sib npaug Gcal thiab kW / h lossis Gcal / h thiab watts. Tsis txhob cuam tshuam lub zog nrog lub zog!

zog kWh
zog kWh

Counter device

ntsuas cov hluav taws xob siv hluav taws xob, cov ntsuas hluav taws xob tau siv, uas yog hom kev sib koom ua ke uas muab lub zog los ntawm lub sijhawm siv tshuab lossis hluav taws xob. Txoj hauv kev yooj yim tshaj plaws kom nkag siab txog lub hauv paus ntsiab lus ntawm lawv txoj haujlwm yog siv cov piv txwv ntawm cov cuab yeej ntsuas ntsuas qub. Lub zog hluav taws xob sib npaug ntawm cov khoom siv hluav taws xob hluav taws xob (nws yog tus qauv rau peb thiab sib npaug rau 220 volts) los ntawm tus nqitam sim no. Qhov ceev ntawm kev sib hloov ntawm lub disk yog proportional rau lub hwj chim noj, thiab qhov ceev nws tig, ntau zaus tus lej ntawm lub log uas tsav nws flicker.

gcal h rau kW
gcal h rau kW

Meter li kev sib koom ua ke

Kev ntsuas hluav taws xob zoo li kev sib koom ua ke. Yog tias koj tso lub sijhawm rau ntawm abscissa, thiab npaj lub zog siv rau ntawm kev tswj hwm (uas yuav txawv thaum lub sijhawm sau nyiaj), tom qab ntawd koj yuav tsum tau them nyiaj rau "chaw" uas cuam tshuam los ntawm qhov nkhaus saum toj thiab ntu ntawm kev tshaj tawm. lub sij hawm ntawm ntug. Qhov no yuav yog cov hluav taws xob siv hluav taws xob, kWh - chav tsev uas qhia txog nws lub cev lub cev, thiab txhawm rau suav cov nuj nqis, nws tsuas yog muab cov lej uas tau los ntawm tus nqi tam sim no.

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